Invention Grant
- Patent Title: Acoustical warning system
- Patent Title (中): 声学预警系统
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Application No.: US13507214Application Date: 2012-06-13
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Publication No.: US08998148B2Publication Date: 2015-04-07
- Inventor: Basant K. Parida , Abdullatif K. Zaouk , Jason Ross , Grant Stephen Nash
- Applicant: Basant K. Parida , Abdullatif K. Zaouk , Jason Ross , Grant Stephen Nash
- Applicant Address: US MA Waltham
- Assignee: Foster-Miller, Inc.
- Current Assignee: Foster-Miller, Inc.
- Current Assignee Address: US MA Waltham
- Agency: Iandiorio Teska & Coleman, LLP
- Main IPC: B61L23/00
- IPC: B61L23/00 ; B61L25/02 ; B61L29/00

Abstract:
A locomotive warning system includes an acoustical warning subsystem configured to emit variably directed sound. A controller subsystem is responsive to an initiation command and is configured to trigger the acoustical warning subsystem to begin a sounding sequence when the initiation command is received at a first directivity angle and to continue the sound blast sequence at increasing directivity angles for a pre-establish time and/or distance traveled.
Public/Granted literature
- US20120318932A1 Acoustical warning system Public/Granted day:2012-12-20
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